Automobile sleigh



A. J. PIDGEON AUTOMOBILE SLEIGH Original Filed Sept. 18, 1918 wvcufoz 110 PIDGEON.

Patented Aug. 28, 1923.

i i re 0 era '3' Parent V'QFFICWE. I

- .snnnnw J. rrnenolvyorsr. rEsmNANn or HALIFAX, QUEBEC, CANADA.

AUTOMOBILE SLEIGH.

Application filed September is, lsiajseriai no. Renewed January is,

ToaZZ w ham it may concern Be it known that I, 1 mm) irrwJPoisson, a subject of the King of Great Britain, re-c siding at St. Ferdinand of Halifaigiinthe county of Megantiqin the Province of Que bee and Dominion of Canada, have invented certain new and useful Impjrovements in Automobile sloighsyand Ifdo hereby declare thefollowing to-bea'full, clealgand exactdescription of the inventiomsu'ch as. will enable others skilled int-he art to WhlCll it appertains to make and use the same;

. This invention relates to automobile sleighs, and more particularly: to means whereby ail-automobile or similar .vehicle may be readily converted into a sleigh for winter use.

One of "the main objects of the invention isto provide simple and efiicientpropelling means which may be readily applied toan automobile of standard constructionespecially adaptedfor grlpplng snow or icy surfaces so as to propel the vehicle there'o-ver. I

A. further object islto provide propelling elements which may be. applied at the rear portion ofthe vehicleby the simple expedi ent of removing therean'wheels and asso-v clated part-s.

Another object is to provide propelling members which are especially adapted for use in snow, and may be equally well used 'mechanism constructed in accordance with my invention as applied.

Figure 2 is a side view ofthe same. i The vehicle frame designated generally by A. may be of any suitable or standard construction and is provided with the side beams or sills l of channel construction. In

applying my invention, the rear wheels and associated parts are removed from the frame, and are replaced bydownwardlydn rected bow frames 2 of channel construction,

each ofwhich is provided, at itslongitudinal center, with a bearingblock 3 secur edto the upper face thereof and receiving a stub shaft 4; which is secured in sill 1 and projects outwardly therefrom. he bow frames 2 I are spaced from the sills 1 so as to permit drums are rotated.

provided with a length or strip of steel of free rocking movement thereof, suitable wear plates or washers 5 being interposed between'the mes and'sills.

K'EHCh of, the bow frames-2 lS DIOVlClQCl, at

each end, with an integral vertically direct- Y ed arm 6., These arms are apertured to provide bearing members for stub shafts 7 and ,8-formed at the forward and rearward ends,

respectively, of a substantially: ellipsoidal body or drum 9 whichis thus rotatably supported the frame" Suitable bearing cu s-1O are positioned between the arms 6 and the'ends of body or drum 9,'these cups being adapted to contain anti-friction bearings "mounted therein soas, to reduce friction to a 'in'inimum, Suitable brace bars 1], and 12 extend transversely of. the vehicle frame A and are securedto the forward-and rear ward ends, respectively, of the bow frames,

2 forming therewith a substantially rectan gular frame of rigid construction and serving to prevent relative movement between the drums 9 transversely of the vehicle frame; In this manner, the drums- 9 are muted so as to" be rockable about 'a-horizo'ntal axis while being maintained in proper relation to' the sills 1.

" Each of the drums 9 isprovided within.

relatively widehelical groove 13 extending the full length thereof, the'grooves on the drums being relatively reversed. This groove forms, in effect. a relatively wide rounded helical rib; or thread 14 extending the full length of the drum. These rounded relatively wide or thick threads are well adapted'to grip snow and similar relatively soft material so as to propel the vehicle whenthe drums are rotated. As the drums 9 are comparatively large, and the gripping threads 14 thereof are rounded and rela tively broad these" drums are'well adapted for gripping" soft materials so as to impart a forward impulse to the vehicle when the Each drum is further angle iron construction which is secured about the drumat the apex of thread 14:,

said strip serving to provide a supplemental relatively sharp thread 15 which is well adanted for g ripping ice and similar hard surfaces. In this manner, the drum is provided with two bearing. surfaces, one well adapted for use in connection withsnow and similar soft 11121138115119, the other belng specially adapted for gripping a hard tract on 

